US20200133315A1 - System and method for wireless water leak detection - Google Patents
System and method for wireless water leak detection Download PDFInfo
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- US20200133315A1 US20200133315A1 US16/176,442 US201816176442A US2020133315A1 US 20200133315 A1 US20200133315 A1 US 20200133315A1 US 201816176442 A US201816176442 A US 201816176442A US 2020133315 A1 US2020133315 A1 US 2020133315A1
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- time
- leak
- leak sensor
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- alarm
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/20—Status alarms responsive to moisture
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/003—Arrangement for testing of watertightness of water supply conduits
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems
- E03B7/071—Arrangement of safety devices in domestic pipe systems, e.g. devices for automatic shut-off
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/15—Leakage reduction or detection in water storage or distribution
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- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The system and method for wireless water leak detection provides for manual prevention of external action, such as an external alarm and/or valve shut-off, if a leak sensor can be reached by a respondent within a pre-set time threshold. Upon detection of a leak by a leak sensor, a local alarm, such as an audible alarm or the like, is initiated. Additionally, at the time of detection, a first time is recorded. A first alarm signal is transmitted from the leak sensor to a base station. The first alarm signal includes data representative of the recorded first time. If manual input is not received by the leak sensor within a pre-set time threshold measured from the first time, then the base station transmits a second alarm signal to at least one external device, and may further wirelessly transmit a shut-off signal to a valve controller for closing an associated valve.
Description
- The disclosure of the present patent application relates to leak detection, and particularly to a system and method for wireless water leak detection which allows for manual prevention of external action, such as an external alarm and/or valve shut-off, if a leak sensor can be reached by maintenance personnel, for example, within a pre-set time threshold.
- Although wireless leak detection systems are relatively common, such systems typically suffer from a lack of on-site human intervention. In a typical wireless leak detection system, a leak sensor, upon detection of a leak, automatically and instantaneously transmits a wireless signal, initiating a global alarm and/or shut-off of a valve. Although this automated process instantly takes action to prevent leak-related damage, there are numerous occasions when such an alarm and/or valve shut-off is not warranted. For example, due to the automated nature of typical wireless leak detection systems, accidentally splashed water or cleaning of a floor can cause the alarm to be transmitted and/or cause the valve to be automatically closed, thus wasting the time and energy of responding personnel. Thus, a system and method for wireless water leak detection solving the aforementioned problems is desired.
- The system and method for wireless water leak detection provides for manual prevention of external action, such as an external alarm and/or valve shut-off, if a leak sensor can be reached by maintenance personnel, for example, within a pre-set time threshold. Upon detection of a leak by a leak sensor, a local alarm, such as an audible alarm or the like, is initiated. Additionally, at the time of detection, a first time is recorded.
- A first alarm signal is transmitted from the leak sensor to a base station. The first alarm signal includes data representative of the recorded first time. If manual input is not received by the leak sensor within a pre-set time threshold measured from the first time, then the base station transmits a second alarm signal to at least one external device. The base station may further wirelessly transmit a shut-off signal to a valve controller for closing an associated valve.
- These and other features of the present subject matter will become readily apparent upon further review of the following specification.
-
FIG. 1 diagrammatically illustrates a system for wireless water leak detection. -
FIG. 2 is a block diagram illustrating components of a leak sensor of the system for wireless water leak detection. -
FIG. 3 is a block diagram illustrating components of a base station of the system for wireless water leak detection. -
FIG. 4 is a flow chart depicting steps of a method for wireless water leak detection. -
FIG. 5 diagrammatically illustrates an alternative embodiment of the system for wireless water leak detection. - Similar reference characters denote corresponding features consistently throughout the attached drawings.
- The system and method for wireless water leak detection provides for manual prevention of external action, such as an external alarm and/or valve shut-off, if a
leak sensor 12 can be reached by maintenance personnel (or any other suitable respondent) within a pre-set time threshold. In general, it is understood that the embodiments described herein are for exemplary purposes and are not meant to be limiting to the claimed subject matter. Various non-limiting embodiments may contain all of the components described herein, or may contain more or fewer components without deviating from the scope of the disclosed subject matter. In a non-limiting example as shown inFIG. 1 , the system for wirelesswater leak detection 10 includes, in addition toleak sensor 12, avalve controller 14 and abase station 16. As shown inFIG. 2 ,leak sensor 12 includes acontroller 22, aliquid detector 24, awireless transceiver 26, atimer 28, memory 30, amanual interface 32, and alocal alarm 42. It should be understood thatcontroller 22 may be any suitable type of processor, programmable logic controller, control circuitry or the like. Further, it should be understood thattimer 28 and/or memory 30 may be integrated intocontroller 22 or may be in communication therewith by any suitable type of bus, as is well known in the art. - It should be further understood that
liquid detector 24 may be any suitable type of detector for detection of a leak, as is well known in the art. Upon detection of a leak byliquid detector 24,local alarm 42 is initiated.Local alarm 42 may be an audible alarm delivered by a speaker or the like, as is well known in the art, or may be any other suitable type of local alarm for indicating to those in the vicinity ofleak detector 12 that a leak has been detected. At the time of detection, a first time is recorded in memory 30. It should be understood that memory 30 may be any suitable type of computer readable and programmable memory, and, in a particular non-limiting embodiment, is a non-transitory, computer readable storage medium. - With reference to
FIG. 4 , instep 100,leak sensor 12 is initially in a sensing mode. In this mode, no action is being taken other thanliquid detector 24 being in an operational state to detect liquid. When the leak is detected atstep 102,local alarm 42 is initiated, such as through generation of an audible “squawk” or the like (step 104), andtimer 28 initiates a counter (step 106), beginning from the first time recorded in memory 30. It should be understood thatcontroller 22 operates to initiate and control each of these steps. -
Controller 22 then generates a first alarm signal to be transmitted by wireless transceiver 26 (step 108). The first alarm signal is represented by signal S1 inFIG. 1 . It should be understood thatwireless transceiver 26 may be any suitable type of transceiver for transmitting and receiving wireless signals. The first alarm signal includes data representative of the recorded first time. As shown inFIG. 3 ,base station 16 includes aprocessor 34, associatedmemory 38, awireless transceiver 36 and atelecommunication interface 40. It should be understood thatprocessor 34 may be any suitable type of processor, controller, control circuitry or the like. Similarly, it should be understood thatmemory 38 may be any suitable type of computer readable and programmable memory, and is preferably a non-transitory, computer readable storage medium. The first alarm signal is received bywireless transceiver 36 ofbase station 16. It should be understood thatwireless transceiver 36 may be any suitable type of transceiver for transmitting and receiving wireless signals. - As indicated by
step 110 ofFIG. 4 ,base station 16, upon receipt of the first alarm signal, transmits an acknowledgement signal back toleak sensor 12. Ifleak sensor 12 does not receive the acknowledgement signal within a pre-determined amount of time,leak sensor 12 re-transmits the first alarm signal. A desired number of return loops can be programmed such thatleak sensor 12 does not transmit the first alarm signal enough times to cause strain or congestion on the local wireless network. For example,leak sensor 12 may be programmed to transmit the first alarm signal five times (assuming that no acknowledgment signal is received) and then cease for a pre-determined interval. As a non-limiting example, after five unacknowledged transmissions,leak sensor 12 can be programmed to go into a sleep mode for five minutes and then transmit the first alarm signal again. - The
local alarm 42 is provided inleak sensor 12 so that maintenance personnel, or any other suitable type of respondent in the vicinity ofleak sensor 12, can take action if a leak is detected. In order to prevent any further action, such as sending an alarm to personnel who are off-site, for example, the local respondent can enter manual input to leaksensor 12 via amanual interface 32, which may be a button, for example, mounted on the housing ofleak sensor 12. As indicated instep 112 ofFIG. 4 , this manual input must be received within a pre-set time threshold, with the time being measured, from the recorded first time, bytimer 28. - If the manual input is entered within the pre-set threshold, then
leak sensor 12 returns to its sensing mode (step 100) and thelocal alarm 42 is deactivated. However, if the manual input is not received by theleak sensor 12 within a pre-set time threshold, then thebase station 16 transmits a second alarm signal to at least one external device. Thebase station 16 may further wirelessly transmit a shut-off signal S2 to avalve controller 14 for closing an associated valve to shut off flow through the pipes associated with the leak (step 114). - In
FIG. 1 ,base station 16 is shown in communication with acloud server 18 for transmitting the second alarm signal to auser device 20. It should be understood thattelecommunication interface 40 ofbase station 16 may be any suitable type of interface for communicating with any suitable type of local area or wide area network. It should be further understood thatuser device 20 represents one or more of any suitable type of device which is external to the building or location in whichsystem 10 is installed.User device 20 may be, for example, a laptop computer, a smartphone or the like, allowing the second alarm signal to reach off-site personnel. - Returning to
FIG. 1 , it should be understood thatsingle leak sensor 12 is shown for purposes of illustration only. As shown inFIG. 5 , groupings of multiple leak sensors (LSs) may be provided. For example, a first group ofleak sensors leak sensors corresponding communication hub hubs Hubs base station 16. - In addition to the basic operation described above, additional times may be recorded in order to generate an overall incident log with accurate time reporting. For example, a second time may be recorded which is indicative of a time when the leak is no longer detected by
liquid detector 24 ofleak sensor 12. A third time may be recorded which is indicative of a time when the manual input has been received viamanual interface 32 ofleak sensor 12. As a further example, a fourth time may be recorded which is indicative of a time when the initial sensing mode of the leak sensor (step 100) is reinitiated. It should be understood that the second time and the third time may occur in any order. - Each of the second, third and fourth times, as described above, may be transmitted from leak sensor to
base station 16. Thus, each of the recorded times is stored both in memory 30 ofleak sensor 12, and also inmemory 38 ofbase station 16. Thus, althoughbase station 16 typically prepares and records the overall event log,leak sensor 12 also maintains an event log in the event of transmission failure. Further,system 10 can be programmed to transmit additional signals indicative of any of these conditions. For example, upon recordation of the second time, a signal may be transmitted touser device 20 to indicate that the sensed leak has been cleared; i.e., it is no longer present. It should be further understood that users may access the event log, as well as perform programming ofsystem 10, through the connection ofbase station 16 withcloud server 18; i.e., users may input and retrieve data frombase station 16 through user device(s) 20, either on-site or off-site. - It should be understood that the pre-set time threshold may be any desired programmable duration. The pre-set time threshold may also be set to zero, thus automatically and immediately initiating transmission of the second alarm signal to
user device 20 and sending a shut-off signal S3 tovalve controller 14. Additionally, it should be understood that once the manual input has been received by leak sensor 12 (step 112),leak sensor 12 does not immediately need to return to the sensing mode ofstep 100; i.e., a pre-set “lockout” time may be programmed, allowing the user to program a time interval between manual silencing oflocal alarm 42 and returning to the sensing mode ofstep 100. During this period, leak sensor is “locked out” and does not sense the presence of liquids. This programmable interval may be used in situations when the sensed area is wet but not due to a leak, such as during cleaning, for example. - It should be further understood that
leak sensor 12 may be used in combination with any other desired components and features associated with wireless sensor networks. For example,leak sensor 12 may include a locator device, allowing a local user to easily findleak sensor 12 by initiation of a locating signal. Further,leak sensor 12 may be mounted in a desired area by insertion into a base or holster, allowing for simultaneous mounting and powering/charging ofleak sensor 12. - In addition to the basic operation of
system 10 described above, it should be understood thatsystem 10 may be programmed to perform a wide variety of different operations. As an example,valve controller 14, either on its own or under the control ofbase station 16, may be programmed for scheduled valve cycling operations (to prevent “freezing” or sticking of the valve, for example).Valve controller 14 may be self-programmable, manually operable and/or controlled bybase station 16 and/orleak sensor 12. As a further example,leak sensor 12 may be programmed to operate in a test mode, allowing the operation oftimer 28 to be tested, but without initiation of an external alarm and/or a valve shut-off. Further, sincesystem 10 operates as a wireless sensor network,system 10 may be operated in a data gathering mode, allowing for network communication testing. - It is to be understood that the system and method for wireless water leak detection is not limited to the specific embodiments described above, but encompasses any and all embodiments within the scope of the generic language of the following claims enabled by the embodiments described herein, or otherwise shown in the drawings or described above in terms sufficient to enable one of ordinary skill in the art to make and use the claimed subject matter.
Claims (20)
1. A method for wireless water leak detection, comprising the steps of:
detecting a leak with a leak sensor;
initiating a local alarm at the leak sensor;
recording a first time;
wirelessly transmitting a first alarm signal to a base station, the first alarm signal including data representative of the first time; and
if manual input is not received by the leak sensor within a pre-set time threshold measured from the first time, then transmitting a second alarm signal from the base station to at least one external device.
2. The method for wireless water leak detection as recited in claim 1 , wherein the step of initiating the local alarm comprises initiating an audible alarm at the leak sensor.
3. The method for wireless water leak detection as recited in claim 1 , wherein, if the manual input is not received by the leak sensor within the pre-set time threshold measured from the first time, then further wirelessly transmitting a shut-off signal from the base station to a valve controller.
4. The method for wireless water leak detection as recited in claim 1 , further comprising the step of recording a second time indicative of a time when the leak is no longer detected by the leak sensor.
5. The method for wireless water leak detection as recited in claim 1 , further comprising the step of recording a third time indicative of a time when the manual input has been received by the leak sensor.
6. The method for wireless water leak detection as recited in claim 1 , further comprising the step of recording a fourth time indicative of a time when an initial sensing mode of the leak sensor is reinitiated.
7. The method for wireless water leak detection as recited in claim 1 , further comprising the step of ceasing the local alarm when the manual input is received by the leak sensor.
8. The method for wireless water leak detection as recited in claim 1 , further comprising the step of wirelessly transmitting an acknowledgement signal from the base station to the leak sensor upon receipt of the first alarm signal.
9. A method for wireless water leak detection, comprising the steps of:
detecting a leak with a leak sensor;
initiating a local alarm at the leak sensor;
recording a first time;
wirelessly transmitting a first alarm signal to a base station, the first alarm signal including data representative of the first time; and
if manual input is not received by the leak sensor within a pre-set time threshold measured from the first time, then transmitting a second alarm signal from the base station to at least one external device, and further wirelessly transmitting a shut-off signal from the base station to a valve controller.
10. The method for wireless water leak detection as recited in claim 9 , wherein the step of initiating the local alarm comprises initiating an audible alarm at the leak sensor.
11. The method for wireless water leak detection as recited in claim 9 , further comprising the step of recording a second time indicative of a time when the leak is no longer detected by the leak sensor.
12. The method for wireless water leak detection as recited in claim 9 , further comprising the step of recording a third time indicative of a time when the manual input has been received by the leak sensor.
13. The method for wireless water leak detection as recited in claim 9 , further comprising the step of recording a fourth time indicative of a time when an initial sensing mode of the leak sensor is reinitiated.
14. The method for wireless water leak detection as recited in claim 9 , further comprising the step of ceasing the local alarm when the manual input is received by the leak sensor.
15. The method for wireless water leak detection as recited in claim 9 , further comprising the step of wirelessly transmitting an acknowledgement signal from the base station to the leak sensor upon receipt of the first alarm signal.
16. A system for wireless water leak detection, comprising:
a leak sensor adapted for sensing a leak, the leak sensor comprising:
a local alarm for local indication of a sensed leak;
a timer;
a manual interface;
non-transitory computer readable memory for recording a first time, the first time being indicative of a time associated with the sensing of the leak; and
a first wireless transceiver for wirelessly transmitting a first alarm signal, the first alarm signal including data representative of the first time;
a base station comprising:
a second wireless transceiver adapted for receiving the first alarm signal; and
a telecommunication interface, wherein if manual input is not received by the manual interface of the leak sensor within a pre-set time threshold measured from the first time, the telecommunication interface transmits a second alarm signal to at least one external device.
17. The system for wireless water leak detection as recited in claim 16 , wherein the local alarm comprises an audible alarm.
18. The system for wireless water leak detection as recited in claim 16 , further comprising a valve controller, wherein if the manual input is not received by the manual interface of the leak sensor within the pre-set time threshold measured from the first time, the telecommunication interface further transmits a shut-off signal to the valve controller.
19. The system for wireless water leak detection as recited in claim 16 , wherein the non-transitory computer readable memory further records a second time indicative of a time when the leak is no longer detected by the leak sensor, a third time indicative of a time when the manual input has been received by the leak sensor, and a fourth time indicative of a time when an initial sensing mode of the leak sensor is reinitiated.
20. The system for wireless water leak detection as recited in claim 16 , wherein the second wireless transceiver of the base station further wirelessly transmits an acknowledgement signal to the leak sensor upon receipt of the first alarm signal.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/176,442 US20200133315A1 (en) | 2018-10-31 | 2018-10-31 | System and method for wireless water leak detection |
US16/876,903 US11473995B2 (en) | 2018-10-31 | 2020-05-18 | System and method for wireless water leak detection |
US17/941,298 US11946830B2 (en) | 2018-10-31 | 2022-09-09 | System and method for wireless water leak detection |
US18/234,927 US20240085265A1 (en) | 2018-10-31 | 2023-08-17 | System and method for wireless water leak detection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US16/176,442 US20200133315A1 (en) | 2018-10-31 | 2018-10-31 | System and method for wireless water leak detection |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US16/876,903 Continuation-In-Part US11473995B2 (en) | 2018-10-31 | 2020-05-18 | System and method for wireless water leak detection |
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US20200133315A1 true US20200133315A1 (en) | 2020-04-30 |
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US16/176,442 Abandoned US20200133315A1 (en) | 2018-10-31 | 2018-10-31 | System and method for wireless water leak detection |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113820076A (en) * | 2021-09-08 | 2021-12-21 | 深圳百斯特控制技术有限公司 | Base station water leakage detection method, device, equipment and storage medium |
WO2022020306A1 (en) * | 2020-07-24 | 2022-01-27 | Alarm.Com Incorporated | Dynamic water leak detection |
US11746508B2 (en) * | 2018-06-22 | 2023-09-05 | Creative EC Limited | Control valve |
US11866916B2 (en) | 2020-08-17 | 2024-01-09 | Nibco Inc. | Water monitoring and isolation apparatus |
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US20190304290A1 (en) * | 2018-03-28 | 2019-10-03 | Opilio Labs Inc. | Method and system for environmental monitoring of a premises |
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US20170039841A1 (en) * | 2015-08-05 | 2017-02-09 | David Stuart Wilson | Integrated security network |
US20180275011A1 (en) * | 2017-03-23 | 2018-09-27 | Ali Saidi | Systems And Methods For Detecting And Controlling Leaks |
US20180291911A1 (en) * | 2017-04-10 | 2018-10-11 | Logical Concepts, Inc. | Whole home water appliance system |
US20190025150A1 (en) * | 2017-07-21 | 2019-01-24 | Alarm.Com Incorporated | System and method for water leak detection |
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US11746508B2 (en) * | 2018-06-22 | 2023-09-05 | Creative EC Limited | Control valve |
WO2022020306A1 (en) * | 2020-07-24 | 2022-01-27 | Alarm.Com Incorporated | Dynamic water leak detection |
US11866916B2 (en) | 2020-08-17 | 2024-01-09 | Nibco Inc. | Water monitoring and isolation apparatus |
CN113820076A (en) * | 2021-09-08 | 2021-12-21 | 深圳百斯特控制技术有限公司 | Base station water leakage detection method, device, equipment and storage medium |
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